Headlight of a truck vehicle



FIG. 1 is a left, front perspective view of a left side embodiment of a headlight of a truck showing our new design;

FIG. 2 is a top down view thereof, it may be understood that the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 3 is a left view thereof; and,

FIG. 4 is a front view thereof. 

The ornamental design for a headlight of a truck vehicle, as shown and described. 